package com.atguigu.filter;

import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import java.io.IOException;

public class ManagerFilter implements Filter {

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
        Filter.super.init(filterConfig);
    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        HttpServletRequest req= (HttpServletRequest) servletRequest;
        Object user = req.getSession().getAttribute("user");
        if(user==null){
            req.getRequestDispatcher("/pages/UserPages/login.jsp").forward(servletRequest,servletResponse);
        }else {
            filterChain.doFilter(servletRequest,servletResponse);
        }
    }

    @Override
    public void destroy() {
        Filter.super.destroy();
    }
}
